BS EN 61558-1:2005+A1:2009
Safety of power transformers, power supplies, reactors and similar products — Part 1: General requirements and tests

Standard No.

BS EN 61558-1:2005+A1:2009

Release Date

2006

Published By

British Standards Institution (BSI)

Latest

BS EN 61558-1:2005+A1:2009

Replace

BS EN 61558-1:1998 BS EN 61558-1:2005 01/200945 DC-2001

Scope

This International Standard deals with safety aspects of power transformers, power supplies, reactors and similar products such as electrical, thermal and mechanical safety. This standard covers the following types of dry-type transformers, power supplies, including switch mode power supplies, and reactors, the windings of which may be encapsulated or non-encapsulated : NOTE 1 The distinction between transformers, power supplies and switch mode power supplies is as follows: – for transformers, there is no change in frequency .However, transformers (e.g. constant voltage transformers) may have an internal resonance frequency not exceeding 30 kHz; – for power supplies, the internal operational frequency and waveform are different from the supply frequency and waveform, and the internal operational frequency does not exceed 500 Hz (see definition 3.1.19); – for switch mode power supplies, the internal operational frequency and waveform are different from the supply frequency and waveform and the internal operational frequency exceeds 500 Hz and does not exceed 100 MHz.

BS EN 61558-1:2005+A1:2009 Referenced Document

• IEC 60068-2-6 Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal)*， 2007-12-01 Update
• IEC 60076-1 Power transformers - Part 1: General*， 2011-04-01 Update
• IEC 60083 Plugs and Socket-Outlets for Domestic and Similar General Use Standards (Amendment 1-1979) (Edition 2.0)
• IEC 60127-3 Miniature fuses - Part 3: Sub-miniature fuse-links CONSOLIDATED EDITION*， 2020-07-22 Update
• IEC 60216 Guide for the determination of test procedures for evaluating thethermal endurance properties of electrical insulating materials
• IEC 60227 Corrigendum 1 - Polyvinyl chloride insulated flexible cables and cords with circular conductors and a rated voltage not exceeding 750 V
• IEC 60245 Corrigendum 1 - Rubber insulated flexible cables and cords with circular conductors and a rated voltage not exceeding 750 V
• IEC 60269 Low-voltage fuses - Part 7: Supplementary requirements for fuse-links for the protection of batteries and battery systems*， 2021-12-15 Update
• IEC 60269-2 Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K*， 2016-08-01 Update
• IEC 60269-2-1 Low-voltage fuses - Part 2-1: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Sections I to VI: Examples of types of standardized fuses
• IEC 60309 Corrigendum 1 - Plugs, socket-outlets and couplers for industrial purposes
• IEC 60317 Specifications for particular types of winding wires - Part 9: Enamelled round copper wires with high mechanical properties for use in refrigerant systems
• IEC 60320 Amendment 3 - Appliance couplers for household and similar general purposes
• IEC 60320-2-3 Appliance couplers for household and similar general purposes - Part 2-3: Appliance couplers with a degree of protection higher than IPX0*， 2018-06-29 Update

BS EN 61558-1:2005+A1:2009 history

• 2006 BS EN 61558-1:2005+A1:2009 Safety of power transformers, power supplies, reactors and similar products — Part 1: General requirements and tests
• 2006 BS EN 61558-1:2005 Safety of power transformers, power supplies, reactors and similar products - Part 1: General requirements and tests
• 1998 BS EN 61558-1:1998 Safety of power transformers, power supply units and similar - General requirements and tests
• 1996 BS EN 60742:1996 Isolating transformers and safety isolating transformers - Requirements
• 0000 BS 3535-1:1990